Powered by FUEL technology, the M28 FUEL 1-1/8 in. SDS Plus Rotary Hammer delivers faster than corded speed, corded durability and all day work on 1 charge. The Milwaukee POWERSTATE Brushless Motor Provides 3.5 ft. lbs. of impact energy, 0-1,350 RPM and 0-5,000 BPM. The Milwaukee M28 REDLITHIUM Battery Packs provide all day work on 1 charge, 20% more power and 50% more recharges than standard Lithium-Ion batteries. REDLINK PLUS Intelligence integrates full-circle communication between tool, battery and charger to protect from overloading, overheating and over-discharging. Milwaukee HAMMERVAC Dedicated Dust Extractor (2715-DE) features an inline dedicated design engineered to connect directly to and be power by either the M18 or M28 FUEL 1-1/8 in. SDS Plus Rotary Hammers (2715-22 or 0757-22). This design allows for a very compact HAMMERVAC and rotary hammer combination to fit in the most confined work spaces. Utilizing the same replaceable certified HEPA filter as other HAMMERVACS which filter 99.97% of all particles greater than 0.3µm, means more compatibility on the jobsite. For accurate hole depths, this product is built with an adjustable depth stop and ruler for easy and precise adjustments. Featuring a high capacity dust box, users can now work longer without emptying dust box as often.